MY mate has one with 4 anenomes, a hawk like fish, 2 crabs , a snail.The anenomes are neat he got them from a pearl farm that closed down.they had show tanks with native NZ marine life that they were going to chuck if no one took them.He put them in a spare 800mm bev front tank he had and hooked up a canister filter and its been going like a dream.It is over 1 year old now and the only thing you have to replace is the fish and crabs as the anenomes are a bit nasty,but they cost nothing.
He dose not have a chiller and it has no problems.We have a lot of fun with this tank as it not so serious as a reef tank.